The Cahitan languages is a branch of the Uto-Aztecan language family that comprises the

Yaqui The Yaqui, Hiaki, or Yoeme, are an Indigenous people of Mexico and Native Americans in the United States, Native American tribe, who speak the Yaqui language, a Uto-Aztecan language. Their primary homelands are in Río Yaqui valley in the no ...

and the

Mayo language Mayo is an Uto-Aztecan language. It is spoken by about 40,000 people, the Mexican Mayo or ''Yoreme'' Indians, who live in the South of the Mexican state of Sonora and in the North of the neighboring state of Sinaloa. Under the General Law of ...

s, both of Northern Mexico. The branch has been considered to be part of the Taracahitic languages, but this is no longer considered a valid genetic unit.Hill, J. H. (2011). Subgrouping in Uto-Aztecan. Language Dynamics and Change, 1(2), 241-278. The poorly attested language of the Acaxee has also been considered to be Cahitan.

References

Cáhita Indigenous languages of California Southern Uto-Aztecan languages {{UtoAztecan-lang-stub